src/egl/main/egldisplay.h

   1 #ifndef EGLDISPLAY_INCLUDED
   2 #define EGLDISPLAY_INCLUDED
   3
   4
   5 #include "egltypedefs.h"
   6 #include "egldefines.h"
   7
   8
   9 enum _egl_resource_type {
  10    _EGL_RESOURCE_CONTEXT,
  11    _EGL_RESOURCE_SURFACE,
  12    _EGL_RESOURCE_IMAGE,
  13
  14    _EGL_NUM_RESOURCES
  15 };
  16
  17
  18 /**
  19  * A resource of a display.
  20  */
  21 struct _egl_resource
  22 {
  23    /* which display the resource belongs to */
  24    _EGLDisplay *Display;
  25    EGLBoolean IsLinked;
  26
  27    /* used to link resources of the same type */
  28    _EGLResource *Next;
  29 };
  30
  31
  32 /**
  33  * Optional EGL extensions info.
  34  */
  35 struct _egl_extensions
  36 {
  37    EGLBoolean MESA_screen_surface;
  38    EGLBoolean MESA_copy_context;
  39    EGLBoolean KHR_image_base;
  40    EGLBoolean KHR_image_pixmap;
  41    EGLBoolean KHR_vg_parent_image;
  42    EGLBoolean KHR_gl_texture_2D_image;
  43    EGLBoolean KHR_gl_texture_cubemap_image;
  44    EGLBoolean KHR_gl_texture_3D_image;
  45    EGLBoolean KHR_gl_renderbuffer_image;
  46
  47    char String[_EGL_MAX_EXTENSIONS_LEN];
  48 };
  49
  50
  51 struct _egl_display
  52 {
  53    /* used to link displays */
  54    _EGLDisplay *Next;
  55
  56    EGLNativeDisplayType NativeDisplay;
  57
  58    EGLBoolean Initialized; /**< True if the display is initialized */
  59    _EGLDriver *Driver;
  60    void *DriverData; /* private to driver */
  61
  62    int APImajor, APIminor; /**< as returned by eglInitialize() */
  63    char Version[1000];     /**< initialized from APImajor/minor, DriverName */
  64
  65    /** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */
  66    EGLint ClientAPIsMask;
  67    char ClientAPIs[1000];   /**< updated by eglQueryString */
  68
  69    _EGLExtensions Extensions;
  70
  71    EGLint NumScreens;
  72    _EGLScreen **Screens;  /* array [NumScreens] */
  73
  74    EGLint MaxConfigs;
  75    EGLint NumConfigs;
  76    _EGLConfig **Configs;  /* array [NumConfigs] of ptr to _EGLConfig */
  77
  78    /* lists of resources */
  79    _EGLResource *ResourceLists[_EGL_NUM_RESOURCES];
  80 };
  81
  82
  83 extern void
  84 _eglFiniDisplay(void);
  85
  86
  87 extern _EGLDisplay *
  88 _eglNewDisplay(EGLNativeDisplayType displayName);
  89
  90
  91 extern EGLDisplay
  92 _eglLinkDisplay(_EGLDisplay *dpy);
  93
  94
  95 extern void
  96 _eglUnlinkDisplay(_EGLDisplay *dpy);
  97
  98
  99 extern _EGLDisplay *
 100 _eglFindDisplay(EGLNativeDisplayType nativeDisplay);
 101
 102
 103 PUBLIC void
 104 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
 105
 106
 107 PUBLIC void
 108 _eglCleanupDisplay(_EGLDisplay *disp);
 109
 110
 111 #ifndef _EGL_SKIP_HANDLE_CHECK
 112
 113
 114 extern EGLBoolean
 115 _eglCheckDisplayHandle(EGLDisplay dpy);
 116
 117
 118 PUBLIC EGLBoolean
 119 _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy);
 120
 121
 122 #else /* !_EGL_SKIP_HANDLE_CHECK */
 123
 124 /* Only do a quick check.  This is NOT standard compliant. */
 125
 126 static INLINE EGLBoolean
 127 _eglCheckDisplayHandle(EGLDisplay dpy)
 128 {
 129    return ((_EGLDisplay *) dpy != NULL);
 130 }
 131
 132
 133 static INLINE EGLBoolean
 134 _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy);
 135 {
 136    return (((_EGLResource *) res)->Display == dpy);
 137 }
 138
 139
 140 #endif /* _EGL_SKIP_HANDLE_CHECK */
 141
 142
 143 /**
 144  * Lookup a handle to find the linked display.
 145  * Return NULL if the handle has no corresponding linked display.
 146  */
 147 static INLINE _EGLDisplay *
 148 _eglLookupDisplay(EGLDisplay display)
 149 {
 150    _EGLDisplay *dpy = (_EGLDisplay *) display;
 151    if (!_eglCheckDisplayHandle(display))
 152       dpy = NULL;
 153    return dpy;
 154 }
 155
 156
 157 /**
 158  * Return the handle of a linked display, or EGL_NO_DISPLAY.
 159  */
 160 static INLINE EGLDisplay
 161 _eglGetDisplayHandle(_EGLDisplay *dpy)
 162 {
 163    return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY);
 164 }
 165
 166
 167 /**
 168  * Return true if the display is linked.
 169  */
 170 static INLINE EGLBoolean
 171 _eglIsDisplayLinked(_EGLDisplay *dpy)
 172 {
 173    return (EGLBoolean) (_eglGetDisplayHandle(dpy) != EGL_NO_DISPLAY);
 174 }
 175
 176
 177 extern void
 178 _eglLinkResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy);
 179
 180
 181 extern void
 182 _eglUnlinkResource(_EGLResource *res, _EGLResourceType type);
 183
 184
 185 /**
 186  * Return true if the resource is linked.
 187  */
 188 static INLINE EGLBoolean
 189 _eglIsResourceLinked(_EGLResource *res)
 190 {
 191    return res->IsLinked;
 192 }
 193
 194
 195 #endif /* EGLDISPLAY_INCLUDED */